Determination of the Risk of Failures of Locomotive Diesel Engines in Maintenance

Baranovskyi, Denys; Bulakh, Maryna; Michajłyszyn, Adam; Myamlin, Sergey; Muradian, Leonty

doi:10.3390/en16134995

Cited by 11 publications

(8 citation statements)

References 44 publications

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“…The optimization of the maintenance system of the electrical complex from the point of view of reliability, first, should be economically justified if catastrophes and human losses are not considered. An economically justified level of reliability is the main criterion for forming an EE trolleybus maintenance system [47].…”

Section: Resultsmentioning

confidence: 99%

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Determination of the Reliability of Urban Electric Transport Running Autonomously through Diagnostic Parameters

Martyushev,

Malozyomov,

Kukartsev

et al. 2023

WEVJ

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The urban transport network involves complex processes, operating 24 h a day and 365 days a year. The sustainable development of the urban transport network using electric buses and trolleybuses that run autonomously is an urgent task since the transport network performs integral social functions and is the transport artery of any urban center. The social and economic life of a city as a whole depends on the reliability of the transportation network. A theory is proposed for the technical and economic evaluation of reliability improvement in electric buses and trolleybuses running autonomously, which enables the determination of the reliability parameters of electric buses and forecasts for the future from the point of view of optimal economic costs for the operation of electric equipment in electric buses. As a result of the application of the proposed theory, it was found that increasing the reliability of the transportation fleet can lead to a decrease in both specific operating costs and capital investments in the development of the fleet. This is achieved as a result of increasing the annual productivity of vehicles by reducing the time they are out of service to eliminate the consequences of failures and carry out maintenance and repair. The conducted experiments confirmed that the theory and methodology of optimal reliability level selection not only enable the rational use of the material resources of the urban transport network but also the release of funds for its scientific and technical development by reducing the number of failures in the electrical equipment of transport systems by 14%.

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Section: Resultsmentioning

confidence: 99%

“…Determining the reliability and predicting the serviceability of the trolleybus electrical complex undoubtedly have a great applied aspect, consisting of a reduction in the maintenance and repair costs of the equipment according to the needs and technical conditions [46,47].…”

Section: Resultsmentioning

confidence: 99%

Determination of the Reliability of Urban Electric Transport Running Autonomously through Diagnostic Parameters

Martyushev,

Malozyomov,

Kukartsev

et al. 2023

WEVJ

View full text Add to dashboard Cite

show abstract

“…The submodel allows us to calculate the dynamic characteristics of the vehicle at all possible modes of operation of the electric vehicle. The unit consists of a "PI controller" [69], which compares the error between the theoretical cycle-defined angular speed of the TM shaft and the actual speed. The output of the "PI controller" calculates the motor torque signal, including all losses [70].…”

Section: Mathematical Model Considering Mechanical Characteristics Of...mentioning

confidence: 99%

Mathematical Modelling of Traction Equipment Parameters of Electric Cargo Trucks

Malozyomov,

Martyushev,

Sorokova

et al. 2024

Mathematics

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Electric vehicles are one of the most innovative and promising areas of the automotive industry. The efficiency of traction equipment is an important factor in the operation of an electric vehicle. In electric vehicles, the energy stored in the battery is converted into mechanical energy to drive the vehicle. The higher the efficiency of the battery, the less energy is lost in the conversion process, which improves the overall energy efficiency of the electric vehicle. Determining the performance characteristics of the traction battery of an electric vehicle plays an important role in the selection of the vehicle and its future operation. Using mathematical modelling, it is shown that battery capacity, charging rate, durability and efficiency are essential to ensure the comfortable and efficient operation of an electric vehicle throughout its lifetime. A mathematical model of an electric truck including a traction battery has been developed. It is shown that, with the help of the developed mathematical model, it is possible to calculate the load parameters of the battery in standardised driving cycles. The data verification is carried out by comparing the data obtained during standardised driving with the results of mathematical modelling.

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“…Since energy recovery is limited, and a standard braking system together with regeneration was applied during driving, the verification of the energy consumption would be unreliable. Therefore, to compare the energy performance, it is necessary to compare the energy expended without regeneration [65].…”

Section: Verification Of the Energy Performance Of An Electric Busmentioning

confidence: 99%

Determination of the Performance Characteristics of a Traction Battery in an Electric Vehicle

Malozyomov,

Martyushev,

Kukartsev

et al. 2024

WEVJ

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Electric vehicles are the most innovative and promising area of the automotive industry. The efficiency of a traction battery is an important factor in the performance of an electric vehicle. This paper presents a mathematical model of an electric truck, including modules for the traction battery to determine the depth of battery discharge during the operation of the electric truck, a traction electric system for the electric truck and a system for calculating traction forces on the shaft in electric motors. As a result of the modelling, the charging and discharging currents of an accumulator battery in a real cycle of movement in peak and nominal modes of operation in electric motors and at different voltages of the accumulator battery are determined. A functional scheme of a generalized model of the electric vehicle traction electrical equipment system is developed. An experimental battery charge degree, torques of asynchronous electric motors, temperature of electric motors and inverters, battery voltage and the speed of electric motors have been measured and analysed. The developed complex mathematical model of an electric vehicle including a traction battery, two inverters and two asynchronous electric motors integrated into an electric portal bridge allowed us to obtain and study the load parameters of the battery in real driving cycles. Data were verified by comparing simulation results with the data obtained during driving.

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Determination of the Risk of Failures of Locomotive Diesel Engines in Maintenance

Cited by 11 publications

References 44 publications

Determination of the Reliability of Urban Electric Transport Running Autonomously through Diagnostic Parameters

Determination of the Reliability of Urban Electric Transport Running Autonomously through Diagnostic Parameters

Mathematical Modelling of Traction Equipment Parameters of Electric Cargo Trucks

Determination of the Performance Characteristics of a Traction Battery in an Electric Vehicle

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